#bd{
    height: 100%;
    width: 100%;
}
.walletAddress{
    width: 350px;
    height: 100px;
    margin: 0 auto;
    position: absolute;
    text-align: center;
    font-family: 华文仿宋;
    font-size: large;
}
.walletAddress h4{
    font-size: small;
}

